Listen to Kuch To Hua Hai online. Kuch To Hua Hai is a Hindi language song and is sung by Shankar-Ehsaan-Loy, Alka Yagnik, and Shaan. Kuch To Hua Hai, from the album Kal Ho Naa Ho, was released in the year 2003. The duration of the song is 5:22. Download Hindi songs online from JioSaavn.